Can I play UndertaleForFree in my browser?

Yes. UndertaleForFree runs right on this page — press Play at the top. There is nothing to download or install, and it works in any modern browser, Chromebooks included.

UndertaleForFreeNew tab

Loads from undertaleforfree.com when you press play.

Browser game

UndertaleForFree

Released April 1, 2026 (7 months ago)

Bluesky

Runs in any browser — no download, works on Chromebook

About UndertaleForFree

UndertaleForFree is an April Fools game. It initially disguises itself as a web port of Undertale, although it drops this act quickly and reveals itself to be a recreation of the Genesis homebrew title CrazyBus. UndertaleForFree was made open source on the same day. The source code can be found on Codeberg.

Screenshots and video

UndertaleForFree: questions and answers

Can I play UndertaleForFree in my browser?: Yes. UndertaleForFree runs right on this page — press Play at the top. There is nothing to download or install, and it works in any modern browser, Chromebooks included.